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Lithium starter battery and solid state switch therefor

A technology for battery packs and battery casings, which is applied in the field of solid-state switching devices and starting internal combustion engines. It can solve problems such as arc discharge of relays or contactors, large volume of relays and contactors, disconnection of relays or contactors, etc., and achieve cycle life and The effect of reducing the service life, realizing the maximum current control, and increasing the product life

Inactive Publication Date: 2016-01-13
马丁·克布勒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 3) Relays and contactors can only be turned on or off
During the switching of high currents, strong arcing can occur inside the relay or contactor, and this can cause the relay or contactor to "weld" open
Once the relay or contactor is welded open, switching operation cannot be performed at that moment, which may cause safety problems, that is, switching cannot be performed when it needs to be switched
[0010] 4) Relays and contactors are bulky and bulky for larger current applications

Method used

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  • Lithium starter battery and solid state switch therefor
  • Lithium starter battery and solid state switch therefor
  • Lithium starter battery and solid state switch therefor

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Embodiment Construction

[0065] Contains LiFePO, LiFePO 4 , LiFeMgPO 4 , and LiFeYPO 4 The lithium battery has a low nominal battery voltage (3.2V-3.3V) that is directly compatible with the existing 12V lead-acid battery equivalent system. Four LiFePO cells connected in series have a nominal voltage of 13.2V. Therefore, they can directly replace existing 12V lead-acid equivalent systems without any electrical-related modifications.

[0066] Other lithium chemistries have higher nominal voltages such as lithium-cobalt (3.6V), lithium-manganese (3.7-3.8V), lithium-nickel-cobalt-manganese (3.7V). When four cells are used in series, each has a higher system voltage. At higher battery voltages, most existing 12V direct replacement systems will not be able to charge other lithium battery chemistries beyond 60% of their capacity. Other lithium batteries that the present invention can adopt are lithium cobalt oxide (LiCoO ), lithium manganese oxide (LiMn 2 o 4 ). Lithium manganese cobalt nickel oxide ...

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Abstract

Apparatus for increasing the efficiency of a starter battery for a starter motor of an internal combustion engine in a battery pack arrangement with one or more lithium based cells. The invention includes a solid state switching configuration for high powered battery systems for protecting against over-charging, over- discharging and short circuiting of batteries, especially starter batteries for internal combustion engines.

Description

[0001] This application is a divisional application of a Chinese invention patent application with application number 201180057159.1 (application date: November 28, 2011; title of invention: starter lithium battery and solid-state switch for the lithium battery). technical field [0002] The present invention relates to methods and apparatus for starting an internal combustion (IC) engine. More particularly, the invention is a lithium-based battery for starting such an engine. The present invention includes a solid state switching device for a high power battery system to prevent overcharging, overdischarging and short circuiting of batteries, especially starter batteries for internal combustion engines (ICE). Background technique [0003] Currently, internal combustion engines use a starter battery containing lead acid to turn an electric motor to start the internal combustion engine. Lead-acid batteries are bulky, have short cycle life, short service life, and low turnaro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H02H7/18H01M10/052H01M50/574
CPCH01M10/4207H01M10/425H02H7/18H01M10/052H02H3/26H02J7/00H01M10/0525H01M10/42H01M10/46H01M2010/4271H01M2220/20H01M50/581H01M50/574Y02E60/10
Inventor 马丁·克布勒
Owner 马丁·克布勒